NDLI: Implementation of the Thickened Flame Model for Large Eddy Simulation of Turbulent Premixed Combustion in a Commercial Solver

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Durand, Ludovic Polifke, Wolfgang
Copyright Year	2007
Abstract	The Thickened Flame model of Colin et al. for Large Eddy Simulation of turbulent premixed combustion has been implemented in a general purpose, commercial CFD solver. In this model, the computation of the filtered reaction rate involves a third order derivative operator acting on the velocity field. The evaluation of this operator is non-trivial even for cartesian grids, and indeed quite difficult for unstructured grids. Strategies to overcome these difficulties are discussed in the paper; in order to ease the implementation for unstructured grids in a commercial solver, a slight modification of the original thickened flame model is proposed. Both the original and the modified version of the thickened flame model are validated against experimental data (velocity distribution and flame position) for a turbulent, bluff-body stabilized, premix flame. A comparison against results obtained with the Turbulent Flame speed Closure LES-model proposed by Flohr and Pitsch is also presented.
Sponsorship	International Gas Turbine Institute
Starting Page	869
Ending Page	878
Page Count	10
File Format	PDF
ISBN	0791847918
DOI	10.1115/GT2007-28188
e-ISBN	0791837963
Volume Number	Volume 2: Turbo Expo 2007
Conference Proceedings	ASME Turbo Expo 2007: Power for Land, Sea, and Air
Language	English
Publisher Date	2007-05-14
Publisher Place	Montreal, Canada
Access Restriction	Subscribed
Subject Keyword	Combustion Flames Turbulence Large eddy simulation Computational fluid dynamics Computation
Content Type	Text
Resource Type	Article

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